Through a device called the ‘Kaalink’, which clips onto pollutant-spewing exhaust pipes, the Graviky Labs team recycles soot and other waste particles into what they are calling ‘Air Ink’.

“Air Ink is about capturing pollution before it enters the environment from your cars, from your trucks, from the diesel generators that are spitting out these particles of matter, and then converting that into inks,” Graviky Labs co-founder Anirudh Sharma said.